Insulating device for electric cables.



P. CAROLAN.

INSULATING DEVICE FOR ELECTRIC CABLES. APPLICATION PILE)l DEG. 9l 1910,

1,011,118g n Patented 11611.5,1911

' the spiice, :met which has neibe E TELEWQG SABLES.

Patented Dee. 5, 1911.

Application tie Becemxer 51, i919. Seite?. No. 596,449.

To all wwm t? nmgi eminem:

Be it known that T, Pii'iineii. *5j-infiniti, n citizen et the UnitedL Staates, zeeit'ing et Cleveland, in the enmity of n onynheggjn finti State oit' Ghie, have inveii'eti eeiftnin new and usefni improvements in ii inting DeH 'vices for Eieetrie Cnbies, of which the fob towing is n specification.

This invention teintes to epiieing devices for electric eabies, and the like, and has for its object, to provitie ineens tot ineuinting each Section of the zinnen ot the (zahle from all other sections, thereby p eoteeting the Whoe onbie 'oni the festifnetive netien of iightnii'ig envi eieetoiysis; to .tesi the (ten-- ger of inindiing iii/e enttes hf 'ggioies and in subways; to protect nii hnntings een neeted with telephone., teieLginnh, ei? Eine alarm systems through eneh cehiee from eine to live niino; to provide foi' better insnintimi for the splines sind te reduce t-ionhie in the spiioes; sind' to provitie menne foi.' ie eating trouble in the eahie Without. opening' the spliees, which is expeneive nini inhoiioiis.

This invention 'is embeoiiee' in n. sleeve of suitable insninting material which sniiennde end poi@ 'tions for uniting the Seid s'iee'f'e over the ends of the adjacent sections of the cable after the emineotion et the ennnetngg Wines has been mede. Provision is eine mette ter the fiiiing of said sieeve with zinsnteting materiel to ad@ te the. eiiieieney of device, and ineens :1re e so pi'evitiee Een een ning' test2 Wires from the eonfinetng' wines to n pesitien below the siii-face of the Steeve,

which ends een readily 'be expoee toi' nietit ,ing tests, and for other pni'posee.

@therd pnrtionsirs es to the eenistii'tietien and arrangement. et the inventien, Wilt he (iesoifihed heteinefter, and which we Shen/n in the neeonipnnying (imwing et the invention, in Which-- Figure l is a perspective et the insnieting sleeve. Fig. 2 is e longitudinal set ion of the seid Steeve, showing; ineens to? seeming; the fusibie encis thereto. Fig'. 3 is n section of the sleeve eonipiete with. the sible ends. Fig. 4i is e iongituciinni section eL the device, after the splice has 'been innesta In the accompanying@ t'mfwingggs, siniiini? reference ehnrsugzters indicate simifee pente throughout the several views.

The mein sieeve of the device is Shown at 5, and the fnsibie ends oi eniis shown at 7. The seid `sleeve o' is mette ef suitnhie insnieing nintenini, such ns glass, fiile?. dey, ez: the tikte. preferably eiiiy, and een ie made ef snitzihie design. As shown, the said s-sieeYe 55 hns end eoliens 1G and a @entrai ooini i?, :ind also longituinai ribs 13. This ernistiuetion forms e strong sieeve with coinpifntiveI saving in material and Weight., The passage through the sleeve is indieateet 'et G, of which the central p0rtion is sweiied er enlarged as shown at 6. it the ends of the sieeve 5 :m on the inner side thereofl nre ammini' recesses 9, which are preferably corrugated, transversely theeoit, toi-ming# .tips 8 at the ends 0i. the said sieeve Whiei'z :ii'e spece Within the eX- o'f the mein body' of eieeve. The diameter et the. opening the lips 8 is large? than the diameter .t gzsssige G, to? the purpose hereinafter deseiiheei.

ythe neihie ends or fruits 7 are secured to e Steeve in the foiiowing' innnnerz-A nsf 15 is inserted into the enti of the sleeve st theinsiiie of passage G, and a slee-ve et on the end of the sieeve 5 over the projecting end of the Snio plug. Then lead, of othei' suitnhie metal o1' alloy, is poured into the speee oimed hy the Steeve 14 end ping i5. While i1 e motten State, to form the seid Cuit on the end. of the sleeve. lFhis cuff 7 is Secure/ii` heiinetieniiy to the seid sleeve 5 hy heed 10 engaging in the recess 9 and sho hier it neming* ngeinetthe end of the sieefe- 5., The ping; 1:3 end sieeve i4 may he of any slzitfihie design. out it is preferre to have theni taper outwardly and inwardly,

espeetiveif, to p rovide for their easy removal when the cuff 7 is mohied, and to eine form the entf 'Z' Iwith n thinne outer gioitien "The eoirngations in the recess 9 @Fevent the seid en's from turning' therein, which. fehle. It Wiii also he noted 7 lie between the extensions of the pinnes ot' the enter and inner sides 0r faces o't the sleeve, for eonvenienee in use. The Steeve 5 aise has seveini recesses 12 on vthe onteii thereof, nrefembly along one et the ribs 18, inici a, hole 13 passes from the he' n of eeen recess 12 through the sleeve te the innen siate thereof.

The twice need :is follows: The Steeve hevin the attached ends 7 is slid over the end of one the sections of cable to be spiiee. The metallic minors of the two sections of ezibie ere shown nt 19 and 19, and ineiese, yespeotivey, the Wires 20 und tenfied inner surface the 20a, which are connected in the usual way. As shown, the ends thereof are wound together, after thefinsulat-ing is scraped off the ends thereof. Testwires 21 are then corinectedto the said connected wires, and thejoint is then insulated by wrapping with tape 22, or any other manner. The free ends of the test wires are run out the respective holes 13 in the sleeve 5. The sleeve 5 is then slid over the-splice just made, with the ends 7 extending over the ends of the two armors 19 and 19 and the said ends are then sol dered or fastened to the said armors by fusion and by beating them inwardlyA against the said armors. This is frequently called a plumbers joint and is. commonly used. In pounding the ends of cuffs 7 inwardly it will appear that the thickness thereof will increase. After this has been done ozite or other insulating material is poured into the sleeve 5 through one of the holes 13 to lill the interior thereof. The swell 6". allows for the enlargement in the splice due to connection means, etc., and also. tends to hold the ozite or other material 27 in4 place. Bushings 26 are. then slipped over the pro truding ends of the test wires 21 and are pushed into the holes 13, and the free ends of the wires are scraped and flattened out on top thereof. Bushings 2 6 are of suitable insu lating material. Over the said exposed ends of the wires 2l are placed insulating buttons 25, cement 24, and an outer button 23, which is preferably of the same material as the sleeve 5. This insulates the said test wires securely below the surface of the sleeve 5. .The joint 'is then .complete and it will be Vseen that thel objects aimed at have been attained 1n an efficient and convenient manner. The various sections of the cable can in this manner be insulated from one another, to prevent electric circuits therein, which are dangerous. The splice is also suitably insulated. And tests of the wires in the cables can be made by removing the parts 23, 24, and 25to expose the test wires 21, which are connected to the various wires in the cable. These test wires and holes 13 can be dispensed with if preferable, and this device can be used for splices in various cables, such as electric light lines, telephone lines, and telegraph lines. After testing the wires 21 can be covered up as before.

Various alterations and additions can be made to this device within the scope of the appended claims, and no limitations are inferred by the `specific construction shown and described.

Having described my invention, what I claim as new is:

1. rlhe combination with a sleeve having In testimony whereof Iatlix my signature in presence of two witnesses.

"I-ATRICK CAROLAN. vI itnesses: i

Vlo'ron E. MUELLER, i MONROE E. MiLLER. 

